NanocarbonFilter The unique activated nano carbon filter removes up to 95% of nitrogen dioxide and gaseous pollutants effectively \u2014 the only type of filter that can absorb the harmful gases and keep them locked away. Powerful dual fan The powerful dual fan design delivers clean air directly back to the driver and passengers Crash tested headrest attachment Attaches easily to passenger seat headrest using crash tested high strength strap and buckle. Mobile application IOS and Android app featuring remote control and airflow management statistics. Users can collect achievement badges reflecting the quality of air cleaned in the vehicle Powerful patented airflow design Vehicle occupants breathe cleaned air faster with airbubbl due to its patented airflow design Particle filter The high-grade particle filter removes particulate matter efficiently. This includes dust, pollen, bacteria, PM2.5 and PM10.